comparison src/squeezedlabel.h @ 523:d869e6a18f63

Make the text labels in the work status area squeezable for small window sizes.  Fixes #329

+/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
+
+/*
+    EasyMercurial
+
+    Based on HgExplorer by Jari Korhonen
+    Copyright (c) 2010 Jari Korhonen
+    Copyright (c) 2011 Chris Cannam
+    Copyright (c) 2011 Queen Mary, University of London
+    
+    This program is free software; you can redistribute it and/or
+    modify it under the terms of the GNU General Public License as
+    published by the Free Software Foundation; either version 2 of the
+    License, or (at your option) any later version.  See the file
+    COPYING included with this distribution for more information.
+*/
+
+/*
+    This file adapted from Rosegarden, a sequencer and musical
+    notation editor.  Copyright 2000-2011 the Rosegarden development
+    team.
+
+    Adapted from KDE 4.2.0, this code originally Copyright (c) 2000
+    Ronny Standtke.
+*/
+
+#ifndef _SQUEEZED_LABEL_H_
+#define _SQUEEZED_LABEL_H_
+
+#include <QLabel>
+
+class SqueezedLabelPrivate;
+
+/**
+ * @short A replacement for QLabel that squeezes its text
+ *
+ * A label class that squeezes its text into the label
+ *
+ * If the text is too long to fit into the label it is divided into
+ * remaining left and right parts which are separated by three dots.
+ */
+
+class SqueezedLabel : public QLabel
+{
+    Q_OBJECT
+    Q_PROPERTY(Qt::TextElideMode textElideMode READ textElideMode WRITE setTextElideMode)
+
+public:
+    /**
+    * Default constructor.
+    */
+    explicit SqueezedLabel(QWidget *parent = 0);
+    explicit SqueezedLabel(const QString &text, QWidget *parent = 0);
+
+    virtual ~SqueezedLabel();
+
+    virtual QSize minimumSizeHint() const;
+    virtual QSize sizeHint() const;
+    /**
+    * Overridden for internal reasons; the API remains unaffected.
+    */
+    virtual void setAlignment(Qt::Alignment);
+
+    /**
+    *  Returns the text elide mode.
+    */
+    Qt::TextElideMode textElideMode() const;
+
+    /**
+    * Sets the text elide mode.
+    * @param mode The text elide mode.
+    */
+    void setTextElideMode(Qt::TextElideMode mode);
+
+public Q_SLOTS:
+    /**
+    * Sets the text. Note that this is not technically a reimplementation of QLabel::setText(),
+    * which is not virtual (in Qt 4.3). Therefore, you may need to cast the object to
+    * SqueezedLabel in some situations:
+    * \Example
+    * \code
+    * SqueezedLabel* squeezed = new SqueezedLabel("text", parent);
+    * QLabel* label = squeezed;
+    * label->setText("new text");    // this will not work
+    * squeezed->setText("new text");    // works as expected
+    * static_cast<SqueezedLabel*>(label)->setText("new text");    // works as expected
+    * \endcode
+    * @param mode The new text.
+    */
+    void setText(const QString &text);
+    /**
+    * Clears the text. Same remark as above.
+    *
+    */
+    void clear();
+
+protected:
+    /**
+    * Called when widget is resized
+    */
+    void resizeEvent(QResizeEvent *);
+    /**
+    * \reimp
+    */
+    void contextMenuEvent(QContextMenuEvent*);
+    /**
+    * does the dirty work
+    */
+    void squeezeTextToLabel();
+
+private slots:
+    void _k_copyFullText();
+
+private:
+    QString fullText;
+    Qt::TextElideMode elideMode;
+};
+
+
+#endif